I am currently a senior at a school with semesters, looking at transferring back to my old school which is on the trimester system. Since the trimesters are about to end where I live, I thought now would be a good time. However, how will my grades translate over? Will they show what they are at my current school for a permanent trimester grade, or will they be exempt?

Also, my grades at my current semester school aren't ideal, and much below the grades I usually receive. If I were to change, would these grades be recorded perfectly? And, if so, is it worth it to move back to my old trimester school (because I know that I flourish in the settings of my old school and would be better prepared for college)?